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(11)

EP 2 493 615 A1

(12)

(43) Date of publication: 05.09.2012 Bulletin 2012/36 (21) Application number: 10769053.9 (22) Date of filing: 25.10.2010

(51) International Patent Classification (IPC):  B01J 31/22(2006.01) C08F 4/6592(2006.01) C08F 4/659(2006.01) (86) International application number: PCT/GB2010/051791 (87) International publication number: WO 2011/051705 (05.05.2011 Gazette 2011/18)

(84) Designated Contracting States: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR (30) Priority: 26.10.2009 GB 0918736 (71) Applicant: Isis Innovation Ltd Oxford, Oxfordshire OX2 7SG (GB)	(72) Inventors: O'HARE, Dermot Oxford OX1 3TA (GB) RANSOM, Paul Oxford OX1 3TA (GB) ASHLEY, Andrew Oxford OX1 3TA (GB) (74) Representative: Harrison Goddard Foote  4th Floor Merchant Exchange 17-19 Whitworth Street West Manchester M1 5WG Manchester M1 5WG (GB)